Machine for molding blocks.



J. JAEGER. MACHINE FOB MOLDING BLOCKS; I APPLICATION mm) M41121, 1901. D Y

- Patented Sept. 22, 1908.

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- WITNESSES J. JAEGER.

' MACHINE FOB HOLDIHG'BLOGKB.

APPLIOLTIOE FILED HAY 21, 1907.

Patented Sept 22, 1908.

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Patented Se t. 22,1908

lllll [,T [I IL J JAEGBR. MACHINE FOB MOLDHTG BLOCKS. APPLICATION FILED MAY 21, 1901 WITNESSES J. JAEGER. MACHINE FOB MOLDING BLOCKS. APPLICATION nun Mn 21, 1901.

V Patntefi sepn 22, 1908.

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, Fig. 5. a base frame composed of front and rear To all whom it may concern:

Be it known that I, JULIUS J AEGER, a citizen of the United States, and resident of Rutherford, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Machines for Molding Blocks, of which the following is a specification.

The object of my invention is to provide a new and improved machine for molding blocks, which is simple in construction, is adapted for making a single block with a molded face or a number of such blocks in one operation, the parts of which machine are adjustable for diil'erent sizes of blocks and which machine is so constructed that it can be ened up easily and rapidly for removing .the -reshly molded block without any injury whatever to the latter, thus permitting of great s eed of operation.

In tie accompanying drawings,'in which like letters of reference indicate like arts in all the figures: Figure 1 isa vertical ongitudinal sectional view of my im )roved molding machine on the line 2-.-2 of *ig. 6, parts being broken away. Fig. 2 is a perspective view of the artition spacing bar. Fig. 3 is a side view 0 a removable partition. Fig. 4 is a rear view of the frame plate of the rear wall of the mold box, parts bein broken away. Fig. 5 is an end elevation of the machine, parts being in section and other broken away. Fig. dis a plan view, parts being in section and others broken away. Fig. 7 is a front elevation, the mold box bcin smlng down and open and the mold boart omitted, arts being broken away. Fig. 8 is a vertica transverse sectional view through the mold box, lowered; )a-rts bein broken away. Fig. 9 is a rear 0 ovation of part of the core plate. Fig. 10 is a vertical longitudinal sectional view showing a modified gate lining plate. Fig. 11. is a perspective view of a modified lining plate for the rear wall of the mold box, parts being broken away. Fig. 12 is a perspective view of one of the bars for making grooves in that face of the block formed on the inner face of the slate slab, forming the removable front of the mold box.

The entire machine is mounted on a frame composed of two side frames 1 united by bars 2. The mold box 3 is pivoted to each side frame 1' at 1 to swing in the direction of the arrow and in the reverse direction, see The mold box is constructed with STATES PATENT oFFioE."

JULIUS JAEGER, OF RUTHERFORD, NEW JERSEY.

' MACHINE FOR "MOLDING BLocKs,

Specification of Letters Patent.

Application filed May 21, 1907. Serial No. 374,893.

Patented Sept; a2, 1908. 7

angle side bars 5 united by a curved cross bar 6 and end bars 7, the .end bars having downwardly extending arms 8 by which the mold box is pivoted to the base frame 1. At each end of the base frame of the mold box, at the rear, a stud 9 is fixed, which can as into a fork 10 on the top of the rear stant ard 11 of each side frame 1, and to the outer end of each stud an upwardly extending arm 12 is secured which is provided at its upper end with ball shaped or other handle 13. hen the mold box is in raised position, as shown in Fig. 5, for receiving the mixture, the studs 9 rest in the forks l0 and thus support the mold box at the rear. An L shaped hinge bracket 14 is held adjustably by a screw 15 to the underside of each side bar 5 at each end thereof and said brackets project up be tween the ends of the side bars 5 adjacent to the end bars 7 and to the free ends of the brackets the downwardly extending lugs 15 on the end gates 16 of the mold box are pivoted. The rear wall 17 of the mold box 1s formed of a frame 18 provided with downwardly ext-ending hinge lugs 19, pivoted to hinge lugs 20 secured to the back of the rear side bar 5 so as to permit of swinging said rear wall 18 rearward or upward as shown in dotted lines in Fig. 8, and against angle stops 18*. This frame has 0 enings 21 for the passage of the cores 22. fiy means of screws 23 y the lining plate 24 is held to the frame 18 and this lining forms the inner rear wall of the mold box and has openings 25 for the passage of the cores 22. This lining plate 24 can be detached and replaced by another as for example 26 shown in Fig. 11, which is provided with longitudinal V shaped grooves 27 for forming V shapeddongitudinal ridges on the top of the completed block. To permit of adjusting these lining plates the screws 23 are passed through longitudinal slots 28 along the top and bottom edges of the frame 18 as shown in Fig. '4. In a similar manner lining plates 29 or 30 are held adjustably on the inner faces of the end gates 16 by screws 31 passed through slots 32 at the top and bottom of these end gates. The linings 29 are provided with V shaped ridges 33 or V shaped grooves 3-11 for forming V shaped ridges on one end of the block and V shaped grooves on the other end. The

lining plates 30 are provided with projections shaft 37 is mounted in the front part of i t j. I. 1

u of the rear wall 17 oft pieces to the base 47.

each end gate 16 and on the outer end of such shaft a handlc'38 is secured and on the inner end an eccentric or locking cam 39.

. To the outer side of each end gate a locking latch '40 is pivoted which canengage a headed bolt or pin 41 )rojecting from the end he mold box and adaptedto pass through a hole 42 in the end gate, for the purpose of locking the end gate inv )lace against the end of the rear wall of the mold box.

The front of the mold box is formed of a slate slab 43 resting on edge on the front bar of the mold box base frame and the ends of said slab 43 pass into vertical grooves 44 in the inner sides of the end gates. By turning or swinging the handles 38 rearward, the cams 39 press the inner faces of the end parts of the slab 43 against -the inner sides of the grooves 44 thus locking such slab in place. The mold board45 which has a surface finish corresponding to the desired surface appearance of the front of the finished block, is secured by screws 46 to a bottom frame 47 fittin within the opening in the base of the mo d box and having slots -18. in its horizontal side parts through which the screws 46 pass tof'permit of securing mold boards of different sizes or patterns or composed of several The bottom frame or base hasa cross bar 49 from which arack 49 extends downward and engages a pinion 50 lnounted in lugs of a guide 51 projecting upward from the curved cross bar 6 uniting the front and rear side bars 5, as shown in Figs. 1 and 8. The shaft of this pinion 50 has a hanthe 52 by means of which the pinion can be turned and thereby the bottom and mold board moved into" and out of the mold box, the bottom being guided by rollers 53 running on rods 54 extending downward from the base frame of the mold box. A locking spring 55 engaging the handle 52 serves for locking the pinion 50 and the bottom of the mold box in place. When the mold box is swung 90 degrees to the front the studs 9 pass out of the forks 10 and the front of the slab 43 now rests upon cushion lugs 56 on the upper edges of forwardly extending lin'ackets 57 which guide rods 63 pass loosely. which rods are held horizontally above brackets 64 on the rear of the main supporting frame these rods being covered by casings 65 attached to the legs 52 and from which casing the plate 59 is braced by braces 66. A hopper 67 is pivoted to the top of the core holding plate 59 1 and a pivoted'haudlc lever 68 is connected by l a pivoted rod (if) with the core holding plate. The end gates 16 have triangularopenings 70 through which V shaped strips 71 can beinserted to rest longitiulinally'on the inner surface of the slab 43 when that face of the block formed on said inner 'surface of the slab is to have longitudinal V shaped grooves. Hemovable transverse partitions 7'1 having lugs 73 can be placed intothe mold box when a number of smaller blocks are to be made in one operation, and these partititmsare held and guided by lugs 74 in a removable gage bar 75 having bent apertured ends 76 through which pins or screws can be passed into apertures 77 in, the ends of the end gates 16. W hen the mold box is in raised position its bottom rests upon the transverse supports 78 on the main base frame, which supports 78 are curved down at the front to permit swinging down the mold box.

The operation is as follows :T he parts being in t 1e positions shown in Fig. J the cement mixture for the front of the block, which is of better quality than that for the remainder of the block, is spread on the upper surface of the mold board 45 and .carefully'tamped. Then the core plate is moved forward to bring the cores 22 into the mold box and the hopper 67 is swung into the position shown in dotted lines, Fig. l, and the balance of the cement or other mixture is filled into the mold, carefully tamped and finally struck off smooth -on top. The cores are withdrawn rearward and brought into the position shown in Fig. 1 and then the mold box is swung in an arc of ninety degrees and brought into the position shown in Figs. 7 and S, the slate slab 43,which is now at the bottom, resting on the brackets 57. The pinion 50 is turned to withdraw the mold board 45 from the box uniformly throughout the area of this board. Then the cams 39 are disengaged from the slab 43, the latches 40 are disengaged from the pins -11 and the end gates are swung outward as shown in Fig. 7 and finally the rear wall 17 which is now at the top is swung up until it rests -against the stops 18 as is also shown in Fig. 7 The block is now entirely disengaged from the mold box and rests solely upon the slal: 43 upon which itis carried away for curing. The parts of the mold box are restored tc their original position, the mold box is swung back into the position shown in Fig. 1, another slab 43 is placed in position and locked in place and the above described operat-ior for making a block can now be repeated.

Having described my invention what claim as new and desire to secure by Letter: Patent is:

1. A machine for making molded blocks having a. mold box pivoted to swing in its ou tirety on an arc and provided with a Il(. board separate from any other part of tht mold box, which mold board'is mounted to i move uniformly throughout its area into and out of the box, combined with means for so moving themold board and a hinged back for the box, hinged ends for the box, and a wholly detachable frontfor the box, substantially as set forth 2. A machine for making molded blocks having a mold box and a mold board in said box separate from any other part of the box which mold board is mounted to move uniformly throughout its area into and out of the box, combined with means for so moving the mold board, substai'itially as set forth.

3. A machine for making molded blocks having a mold box provided with a mold board separate from any other part of the box and movable into and out of the box and a rack and pinion gear for so moving the the combination with a supporting frame, 'f

1e same and sup-x a mold box pivoted on t ports for the mold box on said frame, whieh supports are curved downward at the front, to permit of swinging down the mold box on a support substantially as set forth.

6. In a machine for making molded blocks, the combination with a supporting frame, of a mold box, downwardly extending arms on A 5. In a machine for making molded blocks,

the mold box pivoted to the supporting frame, end studs at the rear of the box, forks studs and supports for the box on said frame which supports are curved downward at the.

front, -to permit of swinging down the mold box on a support substantially as set forth.

7. In a machine for making molded blocks, the combinat-ion'witli-a supporting frame, of a mold box pivoted on the same, a removable mold board at the bottom of said box, and means for moving said removable mold board uniformly throughout its area into and out of the box hinged end gates, a removable back having core openings, a wholly detachable front plate which forms the front wall of the mold box, a vertical core plate mounted to move horizontally on the supporting frame and cores pro ecting horizontally from said core plate toward the mold box, sub.

The adjacent to the inner surface of the deigned at Rutherford in the county of elfgei and State of New Jersey this 27th day'o pril A. D. 1907.

JULIUS JAEGER. 1 j

- I a u n .ll) on the supporting frame for IQCOIYIHg SHMl 

